公开(公告)号：US20190184727A1

公开(公告)日：2019-06-20

申请号：US16309571

申请日：2016-10-11

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Tao Chen ,  Xulong FU

IPC: B41M5/50 ,  B41M5/52 ,  D21H19/82 ,  D21H19/38 ,  D21H19/40 ,  D21H19/64 ,  D21H19/58 ,  D21H19/60

CPC classification number: B41M5/502 ,  B32B23/00 ,  B32B27/20 ,  B32B27/26 ,  B32B27/30 ,  B32B27/32 ,  B32B27/36 ,  B32B27/42 ,  B41M5/52 ,  B41M5/5218 ,  B41M5/5236 ,  B41M5/5254 ,  C08K3/10 ,  D21H15/02 ,  D21H19/36 ,  D21H19/38 ,  D21H19/385 ,  D21H19/40 ,  D21H19/44 ,  D21H19/52 ,  D21H19/54 ,  D21H19/56 ,  D21H19/58 ,  D21H19/60 ,  D21H19/64 ,  D21H19/822 ,  D21H21/52

Abstract: According to an example, a recording medium may include a substrate; a first coating including an inorganic pigment, a first binder, and a fixative agent; and a second coating including inorganic nanoparticles and a second binder; in which the inorganic pigment may be a plate-shaped pigment.

公开(公告)号：US10286710B2

公开(公告)日：2019-05-14

申请号：US15038679

申请日：2013-12-20

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Bor-Jiunn Niu ,  Tao Chen ,  Christopher Arend Toles

IPC: B41M5/50 ,  D21H19/10

Abstract: The present disclosure provides recording media and methods. In one example, a light weight media sheet for high speed printing can comprise a paper substrate having a basis weight of less than 100 gsm; a first flatness control layer applied directly to a first side of the paper substrate, the first flatness control layer having a coating weight from 1 to 15 gsm, wherein the first flatness control layer comprises a polymer selected from the group consisting of a polyvinyl alcohol, a polyamide, a polyimide, a polyethylene oxide, a polyvinyl pyrrolidone, a cellulose, a starch, an acrylate, copolymers thereof, and mixtures thereof; and a first ink-receiving layer applied directly to the first flatness control layer, the first ink-receiving layer having a coating weight from 1 to 40 gsm, where the light weight media sheet has a total basis weight from 40 to 150 gsm.

公开(公告)号：US20180354285A1

公开(公告)日：2018-12-13

申请号：US15764753

申请日：2015-12-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Xiaoqi Zhou ,  Xulong Fu ,  Tao Chen

IPC: B41M5/52 ,  B41J2/01

CPC classification number: B41M5/5218 ,  B41J2/01 ,  B41M5/508 ,  B41M5/52 ,  B41M5/5227 ,  B41M5/5245 ,  B41M5/5254

Abstract: A coated print medium can include a base stock having a basis weight of 35 gsm to 250 gsm, and a coating layer applied to the base stock at from 1 gsm to 50 gsm by dry weight. The base stock can include from 65 wt % to 95 wt % cellulose fiber with 20 wt % to 100 wt % being mechanical pulp, and from 5 wt % to 35 wt % inorganic pigment filler. The coating layer can include inorganic pigment particles having an average equivalent spherical diameter from 0.2 μm to 3.5 μm; a fixative agent including metal salt, cationic amine polymer, quaternary ammonium salt, quaternary phosphonium salt, or mixture thereof; and a polymer blend including water soluble polymer and water dispersible polymer having a Zeta potential greater than −40 mV, wherein a weight ratio water soluble polymer to water dispersible polymer is from 1:25 to 1:1.

公开(公告)号：US20180281497A1

公开(公告)日：2018-10-04

申请号：US15763957

申请日：2015-12-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Tao Chen ,  Xiaoqi Zhou ,  Xulong Fu ,  Silke Courtenay

IPC: B41M5/50 ,  B41M5/52

CPC classification number: B41M5/508 ,  B41M5/52 ,  B41M5/5218 ,  B41M5/5227 ,  B41M5/5245 ,  B41M5/5254 ,  B41M5/5272

Abstract: A coated print medium can include a base stock having a basis weight of 35 gsm to 250 gsm, and a coating layer applied to the base stock at from 1 gsm to 50 gsm by dry weight. The base stock can include from 65 wt % to 95 wt % cellulose fiber with 80 wt % to 100 wt % being chemical pulp, and from 5 wt % to 35 wt % inorganic pigment filler. The coating layer can include inorganic pigment particles having an average equivalent spherical diameter from 0.2 μm to 3.5 μm; a fixative agent including metal salt, cationic amine polymer, quaternary ammonium salt, quaternary phosphonium salt, or mixture thereof; and a polymer blend including water soluble polymer and water dispersible polymer having a Zeta potential greater than −40 mV, wherein a weight ratio water soluble polymer to water dispersible polymer is from 1:25 to 1:1.

公开(公告)号：US20170058455A1

公开(公告)日：2017-03-02

申请号：US15119620

申请日：2014-04-28

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Tao Chen ,  Xulong Fu ,  Thomas Roger Oswald ,  Silke Courtenay ,  Christopher Arend Toles

IPC: D21H11/02 ,  D21H21/20 ,  D21H21/16 ,  D21H17/55 ,  D21H11/10

CPC classification number: D21H11/02 ,  D21H11/08 ,  D21H11/10 ,  D21H17/52 ,  D21H17/55 ,  D21H17/56 ,  D21H21/16 ,  D21H21/20

Abstract: A lightweight digital printing medium has a basis weight of less than 100 grams per square meter and includes a base paper. The base paper includes a fiber mixture of hardwood pulp and softwood pulp where at least 5% by weight of total fiber in the fiber mixture is bleached, chemi-thermo-mechanical pulp. An internal sizing agent for neutral or alkaline conditions and a wet-strength agent that is a thermosetting resin are mixed with the fiber mixture. An amount of the wet-strength agent added to the fiber mixture is at least 0.1% total dry weight of the base paper.

Abstract translation: 轻质数字印刷介质的基重小于100克/平方米，并包括一张原纸。 原纸包括硬木浆和软木浆的纤维混合物，其中至少5重量％的纤维混合物中的总纤维被漂白，化学热机械纸浆。 用于中性或碱性条件的内部施胶剂和作为热固性树脂的湿强力剂与纤维混合物混合。 添加到纤维混合物中的湿强剂的量相对于原纸的总干重至少为0.1％。

公开(公告)号：US20140285569A1

公开(公告)日：2014-09-25

申请号：US14353617

申请日：2011-10-24

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Xiaoqi Zhou ,  Tao Chen ,  Eric L. Burch

IPC: B41M5/50 ,  B41M5/52 ,  B41J2/01

CPC classification number: B41M5/502 ,  B41J2/01 ,  B41M5/506 ,  B41M5/508 ,  B41M5/52 ,  B41M5/5218 ,  B41M7/0027 ,  B41M7/0081 ,  B41M7/009

Abstract: An inkjet recording medium includes a substrate having two opposed surfaces, an ink receiving layer disposed on at least one of the two substrate surfaces, and a porous protective layer disposed on the ink receiving layer. The ink receiving layer receives an ink when printed thereon. The protective layer includes: reactive polymer particles that cross-link upon exposure to microwave radiation; non-reactive polymer particles that coalesce upon exposure to microwave radiation; or a combination of the reactive polymer particles and the non-reactive polymer particles, to form a substantially non-porous protective film that covers the printed ink.

Abstract translation: 喷墨记录介质包括具有两个相对表面的基板，设置在两个基板表面中的至少一个上的墨接收层和设置在墨接收层上的多孔保护层。 油墨接收层在印刷时接收油墨。 保护层包括：暴露于微波辐射时交联的反应性聚合物颗粒; 暴露于微波辐射下聚结的非反应性聚合物颗粒; 或反应性聚合物颗粒和非反应性聚合物颗粒的组合，以形成覆盖印刷油墨的基本上无孔的保护膜。